Electroweak interaction as a research area encompasses theoretical and experimental investigations of the unified description of electromagnetic and weak forces within the Standard Model of particle physics. It focuses on the SU(2)\(_L\) × U(1)\(_Y\) gauge structure, spontaneous symmetry breaking via the Higgs mechanism, and the resulting properties and couplings of W, Z, and photon fields. Research includes precision tests of electroweak observables, renormalization and radiative corrections, flavor and CP-violating processes mediated by weak interactions, global fits to constrain model parameters, and explorations of deviations that may signal physics beyond the Standard Model.
The Standard Model (SM), the main physics framework describing elementary particles and the forces driving them, outlines key patterns in physical interactions referred to as gauge symmetries. One of the symmetries it describes ...
As the carriers of the weak force, the W and Z bosons are central to the Standard Model of particle physics. Though discovered four decades ago, the W and Z bosons continue to provide physicists with new avenues for exploration.
General Physics
Feb 19, 2025
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The CMS experiment at CERN is the latest to weigh in on the mass of the W boson—an elementary particle that, along with the Z boson, mediates the weak force, which is responsible for a form of radioactivity and initiates ...
General Physics
Sep 17, 2024
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A team including researchers from the Laboratory for High Energy Physics at the University of Bern has successfully measured the interaction rates of neutrinos at unprecedented energies using the Large Hadron Collider (LHC) ...
General Physics
Jul 16, 2024
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The Belle II experiment is a large research effort aimed at precisely measuring weak-interaction parameters, studying exotic hadrons (i.e., a class of subatomic particles) and searching for new physical phenomena. This effort ...
When you receive a present on your birthday, you might be the kind of person who tears off the wrapping paper immediately to see what's inside the box. Or maybe you like to examine the box, guessing the contents from its ...
General Physics
Jun 12, 2024
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The Standard Model of Particle Physics is scientists' best understanding of the forces that describe how subatomic particles interact. The Standard Model encompasses four forces: the strong nuclear force, the weak nuclear ...
General Physics
Apr 22, 2024
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The discovery of the Higgs boson in 2012 slotted in the final missing piece of the Standard Model puzzle. Yet, it left lingering questions. What lies beyond this framework? Where are the new phenomena that would solve the ...
General Physics
Apr 10, 2024
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777
Last week, at the annual Rencontres de Moriond conference, the CMS collaboration presented a measurement of the effective leptonic electroweak mixing angle. The result is the most precise measurement performed at a hadron ...
General Physics
Apr 8, 2024
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In a talk at the ongoing Rencontres de Moriond conference, the ATLAS collaboration presented the result of its latest test of a key principle of the Standard Model of particle physics known as lepton flavor universality. ...
General Physics
Mar 26, 2024
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